JP2563978B2 - Method of repairing metal pool bottom including drainage line - Google Patents

Description

The present invention relates to a method for repairing a metal pool bottom including an aged drainage line.

[Prior Art and Its Problems] Conventionally, in a metal pool, the bottom of the pool that is in contact with the ground is eroded like a worm erosion due to the effect of a potential difference from the ground, and eventually a pitting phenomenon that opens everywhere occurs However, the applicant of the present application filed in Japanese Utility Model Application No. Sho 61-2005 because of water leakage and repair work.
I am applying for No. 52.

This prior art has a flat rectangular shape and has synthetic resin surface finish panels with fillers on the back surface that are laid parallel to the existing pool bottom and riveted, and the edges of each panel are
A repair wall is formed by connecting with a synthetic resin lining material such as FRP, and the laying work of the surface finishing panel is mainly done to reduce the application area of the lining material and it takes time and effort in a short construction period. Instead, the bottom of the existing pool will be repaired.

By the way, cracks also occur in the water surrounding pipes for drainage, circulation, etc. buried under the bottom of the pool, of course, and water leakage occurs due to the pitting phenomenon.

By the way, if this water enclosing pipe buried in the ground is to be repaired, the work of removing the entire water enclosing pipe following the excavation in the ground and the piping work of the new water enclosing pipe will become a large scale,
The repair cost rises so much that the construction period will be interrupted and the pool usage will be suspended for many negative factors. Because it is cheap, it has been dismantled and the pool has been newly rebuilt.

[Technical problem] A technical problem of the present invention is to repair a pool bottom including a drainage line buried underground in a short time and at low cost.

[Technical Means] The technical means taken to achieve the above technical problems are as follows.

Open the drainage line buried near the edge of the bottom of the existing pool from the inside of the pool and partially remove the existing drainage line, and remove the existing drainage line downstream from the removed part. A step of pulling outward from the bottom of the existing pool bottom, and inserting a synthetic resin pipe from the opening of the existing pool bottom to position one end under the opening and the other end of the existing drain line. A pipe positioning process that projects outward from the ground below the bottom of the existing pool using a drawing path, and a synthetic resin surface finish panel such as FRP that has a flat square shape on the bottom of the existing pool including the drain pit on the back side. The panel fixing step of laying and fixing in parallel with each other with a spacer interposed and the step of closing the gap by filling and fixing a lining material such as FRP in the gap between the finished panels are sequentially performed. In the surface finishing panel made of synthetic resin that closes the opening, a pit protruding under the existing pool bottom is formed in the same body at a portion facing the opening, and the pit bottom has a communication hole through which the one end of the synthetic resin pipe is inserted. Is that it has a hole.

[Operation] The operation by the technical means of the present invention is as follows.

Open the drainage line buried near the edge of the bottom of the existing pool from the inside of the pool and partially remove the existing drainage line, and remove the existing drainage line downstream from the removed part. The process of pulling outward from the bottom of the existing pool bottom, and inserting the synthetic resin pipe from the opening of the existing pool bottom to position one end under the opening and the other end of the existing drain line. A pipe positioning process of projecting outward from the bottom of the existing pool bottom using a channel and a flat square FRP synthetic resin surface finish panel showing a flat square shape on the existing pool bottom including the drainage pit with a spacer on the back side. The pipe position is set in the communication hole at the bottom of the pit that is recessed in the surface finishing panel made of synthetic resin that closes the opening by performing it in the previous step of the panel fixing step of laying and fixing in parallel with each other. Determining one of the positioned pipe step is inserted automatically transmural allows draining the pool water only to perform a cutting and dismantling partial drainage line near the end of the existing pool bottom.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

Removal process In this removal process, the existing drainage line (C) buried in the ground (sand cushion) (B) by opening the vicinity of the end of the existing pool bottom (a) from within the existing pool (A) is used. It is a process of cutting and partially removing.

The existing pool (A) has a large number of aluminum bottom panels (a ') at the lower end of the pool side peripheral wall (b) formed by butt-joining a large number of aluminum side wall panels (b'). The pool bottom (a) is laid by butt jointing.

The existing drainage pit (3 ') at the bottom (a) of this existing pool
3m x 0.5m x 0.12m type near the end on the water enclosing pipe (C) (drainage line) that is connected to the ground and passes through the ground (sand cushion) (B) and cloth foundation (B ') to the outside The pit (3) to be newly installed will be opened, and the opening (5) will be used to dig up the ground and surround the water (C).
(Drainage line) is cut, and the water surrounding pipe (C) is partially removed by the length of the opening (5) (fifth).
Figure).

Drawing Step This step is to draw the water enclosure pipe (drainage line) on the downstream side of the part removed in the above step outward from the bottom of the existing pool bottom (a).

In this drawing process, since the water enclosing pipe (C) is cut in the vicinity of the end in the above process, the residual short pipe (c-1) on the downstream side from the removal location has free ends at both ends and resistance. It is possible to easily pull out artificially.

Pipe Positioning Step In this pipe positioning step, a synthetic resin pipe (6) is attached using the opening (5) opened in the removal step.
Positioning is performed instead of the short pipe (c-1).

The synthetic resin pipe (6) is formed of a synthetic resin material such as FRP having excellent corrosion resistance, has both ends as free ends, and has a rising pipe portion (6 ') at one end.

This synthetic resin pipe (6) is simply loosened from the opening (5) by utilizing the pulling path (7) which is necessarily formed by pulling out the short pipe (c-1) in the pulling step. The end (the end without the rising pipe portion (6 ')) is inserted, and the free end is projected from the outside of the cloth foundation (B') under the existing pool bottom (a) and the rising pipe portion (6 ') ) Is positioned at a fixed position facing the opening (5) (Fig. 6).

Incidentally, this fixed position is a new pit (3) having substantially the same shape as the opening (5) in the panel fixing step which will be described later.
Dedicated synthetic resin finishing panel (1)
When the pit (3) is placed in a protruding shape below the existing pool bottom (a) through the opening (5), the pit (3)
It is a position where it is inserted into the communication hole (8) opened at the bottom.

By the way, after positioning the synthetic resin pipe (6),
The sand cushion is backfilled for the dug back.

Panel fixing step In this step, the existing pool bottom (a) including the drainage pit (3 ') is laid and fixed in parallel with the synthetic resin surface finishing panel (1) such as FRP on the back side with the spacer (2) interposed. It is to be.

The surface finishing panel (1) indirectly forms a stepped portion (31) (gap) in the peripheral edge by providing a recess (21) of a predetermined height on the rear surface while leaving a mounting flange (11) on the peripheral edge. Further, it is a flat rectangular FRP sheet-like product having a desired aspect ratio in which the color of the pool bottom is pre-colored, and the mounting flange (11) is provided with the spacer (2) housed in the recess (21). By fixing the rivets (100), they are laid and fixed in parallel on the entire surface of the pool bottom (a).

Of the surface finishing panel (1), the opening (5) opened in the removal step is repaired, and the panel (1) is repaired by inserting the opening (5) into the existing pool bottom ( a) A new pit (3) projecting downward is integrally formed, and a communication hole (8) is opened at the bottom of this pit (3).
0) When laid and fixed by a stopper, the rising pipe portion (6 ') of the synthetic resin pipe (6) positioned at a fixed position in the pipe positioning step is automatically inserted into the communication hole (8). I have to.

In the surface finishing panel (1) for repairing the existing drainage pit (3 '), the drainage pit (3') is covered and laid and fixed on it.

The spacer (2) is made of a foamed material such as synthetic resin having a slight elasticity and is formed in a sheet shape having a thickness slightly the same as the height of the recessed step (21). It can be housed in the inside by adhesive or as shown in the figure, it can be placed in a place where the surface finishing panel (1) is laid, and when the panel (1) is laid, it can be automatically housed in the recess (21). (Fig. 7).

Gap closing step This step is to close the gap (31) between the surface finishing panels (1) ...

The lining material (4) is composed of a thermosetting resin agent such as unsaturated polyester or epoxy containing additives such as a curing agent and an accelerator as well known in the art, and a glass fiber. It is embedded and fixed in the stepped portion (31) by repeating the operation of embedding it in the mounting flange portion (11) in the lower part of 31), placing glass fiber on this to defoam, and again embedding the resin agent. .

After the lining agent (4) is solidified, sanding is performed and a colored resin is applied to form a surface color.

The gap between the rising pipe portion (6 ') and the communication hole (8) is filled with the sealing material (9) from the inside of the new pit (3) to keep it watertight.

By the way, (10) is a perforated cover plate, (6 ″) is a joint connected to the outer end of the synthetic resin pipe (6), (11) is caulking material, and (41) is the outermost surface finishing panel ( It is a rising plate that is riveted (100) in a watertight manner from 1) via a packing material (51) provided around the lower end portion of the rising pool side peripheral wall (b).

Then, a new drainage line (200) is formed by the pit (3) and the synthetic resin pipe (6) at the bottom of the pool repaired by such a repairing method, and the existing drainage pit (3 ') is The surface finishing panel (1) and the lining material (4) around it are watertightly covered, and the entire area of the existing pool bottom (a) is the same surface finishing panel (1) and the gap between the panels (1) and (1). The lining material (4) filling the (31) keeps it completely watertight.

[Effects of the Invention] Since the present invention is configured as described above, it has the following advantages.

It is possible to repair the pool bottom including the drainage line by partially cutting the water enclosing pipe buried in the ground from the top of the existing pool bottom and removing it as a pre-step of the repair process of the existing pool bottom. , The construction period is shorter and the repair cost is also very low compared to the precedent example of removing the entire water enclosing pipe and piping work of all the water enclosing pipes following excavation in the ground and the precedent example of rebuilding the pool itself. Is.

 Therefore, the intended purpose can be achieved.

[Brief description of drawings]

The drawings show an embodiment of a method for repairing a metal pool bottom including a drainage line according to the present invention. Fig. 1 is a schematic view of a pool after repair and is shown in a longitudinal direction, and Fig. 2 is a pool after repair. FIG. 3 is an enlarged cross-sectional view of a main part, FIG. 4 is a cross-sectional view taken along line (4)-(4), and FIG. 5 is a drawing after a withdrawal step before a withdrawal step. FIG. 6 is an enlarged sectional view showing a state, FIG. 6 is a longitudinal sectional view showing a state of performing a pipe positioning step, and FIG. 7 is an enlarged sectional view showing a state of positioning a surface finishing panel via a spacer. In the figure, (a): Existing pool bottom (C): Existing drainage line (B): Underground (sand cushion) (6): Synthetic resin pipe (7): Withdrawal path, (1): Surface finishing panel ( 31): Gap, (4): Lining material (5): Opening hole, (3): Pit (3 '): Existing drainage pit, (8): Communication hole

 ─────────────────────────────────────────────────── ───Continued from the front page (56) Bibliography Hei 1-168662 (JP, U) Actual 63-106855 (JP, U)

Claims (1)

(57) [Claims] 1. A removal process of opening and partially removing an existing drainage line buried in the ground by opening a hole near the end of the existing pool bottom from the inside of the existing pool, and a downstream of the removed part. Side of the existing drainage line from the bottom of the existing pool to the outside, and a synthetic resin pipe through the opening of the existing pool bottom to put one end under the opening and the other end , A pipe positioning step of projecting outward from the bottom of the existing pool bottom using the extraction channel of the existing drainage line, and a synthetic resin such as FRP having a flat rectangular shape on the existing pool bottom including the existing drainage pit A panel fixing process of laying and fixing the surface finish panels in parallel on the back side with a spacer interposed respectively, and a gap closing process of embedding and fixing a lining material such as FRP in the gap between the finish panels are successively performed. The synthetic resin finishing panel for closing the opening has the same pit projecting under the existing pool bottom at the portion facing the opening and the pit bottom is formed of the synthetic resin pipe. A method for repairing a metal pool bottom including a drainage line, characterized in that a communication hole penetrating one end is opened.